cancellation2.js

import delay from 'delay';


async function fooActionCreator(){
    try {
        const result = await Promise.race([
            fetch('/data', {cancellation}),
            delay(10000).then(() => throw 'CANCELLED'),
        ]);

        return {type: 'REQUEST_DONE', result};
    } catch(ex) {
        if (ex === CANCELLED) {
            return {type: 'REQUEST_CANCELLED'};
        }
    }
}